B6 15 then UA 785 at San Francisco
New York JFK → San Francisco → Washington
Timetable, San Francisco time
11:08B6 15 from New York JFK at the gatealso TP 4397, LO 5773
06:15UA 785 to Washington leaves the gatealso AZ 4408, NZ 9160
19 h 07 apart on the timetable, overnight
UA 785 leaves 19 h 07 after B6 15 arrives on the timetable: more than half a day, so not a connection we count.